根据同分异构的化学原理，有机物有相同的分子式和相同的官能团时，它们的化学性质和物理性质很相似。
According to the principle of isomeric chemistry, when organic substances have the same molecular formula and the same functional groups, their chemical and physical properties are very similar.
辛烷一种具有这种分子式的同分异构的石蜡氢碳化合物，此式为c8h18，在石油中发现，用作燃料和溶剂。
Any of various isomeric paraffin hydrocarbons with the formula C8H18, found in petroleum and used as a fuel and solvent.
我们的分析无法指出WD-40中到底含有其中的哪一种。不过WD-40作为溶剂使用时这几种同分异构体没有多大区别。
Our analysis can't determine which ones are present here, but if you're using it as a solvent, as is likely the case with WD-40, they all work just fine.
根据Dantus的说法，这项技术甚至能区别出两个化学同分异构体—有同样的化学分子式但不一样的原子排列—之间的不同。
According to Dantus, the technique can even tell the difference between chemical isomers - chemicals with the same chemical formula but a different arrangement of atoms.
同分异构体：亦称异构体。分子式相同但构型不同的两种或两种以上的物质，其差别只在于组成原子的排列不同。
Isomer: one of two or more substances with identical molecular formulas but different configurations, differing only in the arrangement of their component atoms.
最常见的例子是有机化合物，亚硝酸盐类的同分异构体，其中一个碳原子以共价键与硝基中的氮原子结合。
The most common examples are organic compounds, isomers of nitrite esters in which a carbon atom is linked by a covalent bond to the nitro group's nitrogen atom.
丁烷的同分异构体。
异构现象是非常重要的，因为酶的特异性限制生物体都只能使用两种同分异构体中的一种。
Isomerism is very important because enzyme specificity restricts viable organisms to the use of only one of the TWO forms.
进而探讨了脂肪醇同分异构体的密度与其分子距边矢量的定量关系。
Then the quantitative relationship between density of the alcohols and their molecular distance edge vector(VMDE) is approached.
裂解产物中含量最多的均为丁香酚及其同分异构体。
The contents of eugenol and its isomers were most the pyrolysis.
目的：研究鸡骨骼肌肌钙蛋白T同分异构体的表达。
Objective: To study the expression of troponin T isoforms in chicken skeletal muscle.
丁烷的另一同分异构体为正丁烷。
甘露醇和山梨醇是一对同分异构体，在化学合成法生产甘露醇时，所产生的山梨醇母液，不可避免的含有部分甘露醇。
Mannitol and sorbitol is a pair of isomer, when mannitol was produced by chemical synthesis, it is ineluctability that there is some part of mannitol retained in the byproduct liquid of sorbitol.
有三种同分异构体的无色可燃烷烃，C5H12，从石油中提炼，可用做溶剂。
Any of three colorless, flammable isomeric hydrocarbons, C5H 12, derived from petroleum and used as solvents.
是存在于乳糖和多糖中的一种六醛糖，为葡萄糖的同分异构体。参见。
Galactose a sugar found in lactose and many polysaccharides. It is an aldohexose, isomeric with glucose. See also sugar.
丁烯乙烯的三种气态同分异构体之一，C4H8，主要用于制造合成橡胶。
Any of three gaseous isomeric ethylene hydrocarbons, C4H8, used principally in making synthetic rubbers.
考察了不同碳链长度的直链醇、C8醇同分异构体、亲水基结构及催化剂种类对渗透性的影响。
The effects of straight chain alcohols with different chain length, C8 alcohol isomers, structures of hydrophilic group and kinds of catalyst on the permeability were examined.
应用高速逆流色谱法对同分异构体的分离纯化进行研究。
High speed countercurrent chromatography (HSCCC) was successfully used for the separation and preparation of isomeric compounds.
戊烷有三种同分异构体的无色可燃烷烃，c5h12，从石油中提炼，可用做溶剂。
Any of three colorless, flammable isomeric hydrocarbons, C5H12, derived from petroleum and used as solvents.
不对称合成法：在化合物中形成两种不等数量的同分异构体的化学反应。
Asymmetric synthesis: Chemical reaction by which unequal amounts of two product isomers are formed.
为满足对乙酰氨基苯乙酸乙酯后续结晶分离工艺的需要，将分子蒸馏技术首次应用于同分异构体的预分离。
To meet the requirement of crystallization separation process for para-acetaminophenylacetate ethyl, molecular distillation was firstly used to separate the isomer.
同分异构三种同分异构酸中的一种，C8H8o2，来自甲苯。
Any of three isomeric acids, C8H 8o 2, derived from toluene.
异丁基铵黑药和正丁基铵黑药是同分异构体，它们有相同的分子式，只烷基异构。
Ammonium di-iso-butyl dithiophosphate and ammonium din-butyl dithiophosphate is isobutyl isomers, they have the same molecular formula, only alkyl isomers.
六种有毒的同分异构体中的一种(CH3)2c6H3nh 2，由二甲苯制得，主要用于染料中间物。
Any of six toxic isomers, (CH3) 2c 6h 3nh 2, derived from xylene, used chiefly as dye intermediates.
用该方法可以得到其他化学方法所得不到的同分异构物的定性定量分析结果。
Experimental results demonstrate that the dielectric analysis is a simple and effective method for qualitative and quantitative analysis of isomers, which is not possible with other chemical methods.
同时，还对蒽、菲同分异构体在不同溶剂中的溶解度的差异，从活度系数方面进行了探讨。
At the same time the difference of the solubility to the isomeric compound Anthracene and Phenanthrene in the different solvents is discussed by the aspect of the activity coefficient.
浮选药剂的浮选性能是它的物理性质和化学性质的集中反映，因此同分异构体的浮选性能亦应十分相似。
The flotation performance of flotation reagents are fully affected by its physical and chemical properties, so the flotation performance of isomers should be very similar.
在QCD弦模型的基础上，基于弦和化学键的相似性，提出了四夸克态的环状颜色结构和QCD同分异构体的概念。
QCD isomeric compounds and a tetra-quark state with the square-like color structure based on a color string model and the similarity between string and chemical bond are proposed and studied.
因此合成原料来源广、价格便宜、易于合成、毒性低的某种浮选药剂的同分异构体，往往能筛选出较好的浮选药剂。
Therefore, some sort of flotation reagent's isomers with features of wide source, low price, easy to be synthetic, and low toxicity can always filter out the better flotation reagents.
本文以《同分异构体》的课堂教学为例，剖析“三点式”的课堂过程教学。
This text take the teaching of isomer as the example, analyze the process of "Three-Points" teaching in the classroom.
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